In November, California voters decisively defeated Proposition 23, a measure that would have suspended our landmark law to curb greenhouse gas emissions. That was a genuine victory for the environment, but not an uncomplicated one. For better and worse, it likely means more wind turbines. And that means more dead raptors.

2009 marks the 25th anniversary of the Golden Gate Raptor Observatory, the Marin-based organization that tracks the movements of birds of prey over the Marin Headlands. Since 1984, more than 1,500 volunteers have logged 40,000 hours alongside staff and scientists to monitor raptors along one of West Coast's most trafficked migratory routes.

The Marin Headlands is justifiably renowned as a great place to see raptors. But did you know that the world’s highest density of breeding golden eagles is found near Altamont Pass? Indeed, the East Bay is a prime location for observing and studying native raptors, from prairie falcons nesting on cliffs near Mount Diablo to bald eagles fishing in local reservoirs and Cooper’s hawks snatching prey out of the air above the streets of Berkeley.